Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 748 · 40 sums

The trick (Ekanyunena Purvena): Write the number with as many digits as there are nines (add zeros in front if needed). Left part: the number minus 1. Right part: “all from 9 and the last from 10” of the number. More digits than the nines (237 × 99)? Split off as many digits as there are nines (2 | 37): left = number − (front part + 1) = 234, right = complement of 37 = 63 → 23463.

1. 1.38 × 9 =
2. 2.151 × 999 =
3. 3.7 × 9 =
4. 4.41 × 9 =
5. 5.206 × 999 =
6. 6.14888 × 999 =
7. 7.64 × 99 =
8. 8.564 × 999 =
9. 9.34 × 99 =
10. 10.2565 × 99 =
11. 11.551 × 999 =
12. 12.7 × 9 =
13. 13.791 × 999 =
14. 14.6 × 9 =
15. 15.8 × 99 =
16. 16.607 × 999 =
17. 17.8 × 9 =
18. 18.5 × 9 =
19. 19.1422 × 99 =
20. 20.111 × 9 =
21. 21.17 × 99 =
22. 22.76 × 999 =
23. 23.65 × 99 =
24. 24.5 × 9 =
25. 25.204 × 9 =
26. 26.41 × 99 =
27. 27.21 × 999 =
28. 28.12401 × 999 =
29. 29.496 × 999 =
30. 30.611 × 99 =
31. 31.525 × 999 =
32. 32.531 × 999 =
33. 33.2 × 9 =
34. 34.7 × 99 =
35. 35.7 × 9 =
36. 36.923 × 999 =
37. 37.4 × 9 =
38. 38.32 × 99 =
39. 39.221 × 9 =
40. 40.45 × 9 =

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